Technical features:

1. The anechoic static box can change part of dynamic pressure into static pressure to make the wind blow further; Noise can be reduced and air volume can be evenly distributed. Static jade box can be used to reduce noise, and even static pressure air can be obtained to reduce dynamic pressure loss.

2. It has the function of universal joint. Applying the static pressure box to the ventilation system well can improve the comprehensive performance of the ventilation system.

3. The inside of the anechoic cavity is filled with centrifugal glass wool, covered with glass cloth and a 4MM perforated plate, and the keel is galvanized.